Margo loves to bowl. In fact, there is only one thing she likes better sex. So when her husband is at work she rounds up her girl friends and every afternoon they go to the local bowling alley. Her husband doesn't mind as he figures that it keeps her out of trouble.

Then Margo makes a startling discovery. That there are a lot of handsome men around in the afternoon with time and money on their hands. So she starts to put her two hobbies, sex and bowling, to work for her. She and her girl friends start making dates with the men at the bowling alley - dates for pay. Everything is great for awhile. The girls are getting plenty of action on and off the alleys, until one day Margo talks a newlywed who is unhappy with her husband to join the group. The girls thought that they knew about sex but soon realized that they were beginners when they saw the new girl in action.

When the new girl suggests an orgy, Margo thinks that they are going too far but the other girls out vote her. This results in some of the hottest sex ever seen on any screen and an ending that is beyond belief.